package com.example.day_blog.config;

/**
 * @author starsea
 * @date 2024-01-18 13:51
 */

import com.example.day_blog.model.Result;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.SneakyThrows;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 *统一返回结果
 */
@ControllerAdvice
public class ResponseAdvice implements ResponseBodyAdvice{
    @Override
    public boolean supports(MethodParameter returnType, Class converterType) {
        return true;
    }

    @SneakyThrows
    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        if(body instanceof Result)
        {
            return  body;
        }
        if(body instanceof String)
        {
            ObjectMapper objectMapper=new ObjectMapper();
            objectMapper.writeValueAsString(Result.success(body));
        }
        return Result.success(body);

    }
}
